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Ethernet and Legacy Access over DSL for TS2008 Slide 52 http://www.cbnetworks.fr - support.technique@cbnetworks.fr Link Trace (LT) OAM Once a problem detected with CC or LB than LT can be used to pin point where the problem is OAM is sent to the final MAC address and all nodes in the path that receive the LT request send back LT response, this way the failure point is found Can be used also the resolve disputes when more than 1 network is used Customer Premises E-NTUCPEE-NTUCPE Operator AOperator B LT Req LT Rep